My dad said it well on another forum:
"My 17 year old wants his first street bike. He will buy it if he gets one and it will be a 250 Ninja or CBR. He has raced MX for 9 years and is a far more skilled rider than me and most on this board but he is a 17 yr old boy and rides like one. No way am I allowing him a 150mph bike as long as he lives with me and acts like a teenager. Here is my opportunity to show off a little with one of my favorite older pics of him on one of his older bikes, a RM250:
